package cn.wolfcode.resolver;

import cn.wolfcode.annotation.UserParam;
import cn.wolfcode.entity.Userinfo;
import cn.wolfcode.redis.service.IUserInfoRedisService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

import javax.servlet.http.HttpServletRequest;

@Component
public class UserinfoArgumentResover implements HandlerMethodArgumentResolver {

    @Autowired
    private IUserInfoRedisService userInfoRedisService;

    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return (parameter.getParameterType() == Userinfo.class) && parameter.hasParameterAnnotation(UserParam.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
        String token = request.getHeader("token");
        Userinfo user = userInfoRedisService.getUserByToken(token);
        return user;
    }
}
